Currently, "Selection Set" (Preferences- View options) is only for color. I would like more parameters to set it: transparent, etc...
Even different behaviour according which element is selected. For example, if an element has Fill or pattern, I would like more transparency.
I say this because if we select a circle or polygon which has a pattern, the color of "Selection Set" hiddes the pattern of the element and although we have open the properties window, if we set the pattern in the properties, we can´t see the properly result in the drawing until we unselect the element.
I like how AutoCAD shows the selected elements without hidding the patterns or at least, minimally.